U.S. patent application number 15/623569 was filed with the patent office on 2018-12-20 for pressure valve and pressure releasing assembly for the same.
This patent application is currently assigned to BANZA STAMPING INDUSTRY CORP.. The applicant listed for this patent is BANZA STAMPING INDUSTRY CORP.. Invention is credited to Li-Wei Chen, Cole Krebs.
Application Number | 20180363791 15/623569 |
Document ID | / |
Family ID | 64656680 |
Filed Date | 2018-12-20 |
United States Patent
Application |
20180363791 |
Kind Code |
A1 |
Chen; Li-Wei ; et
al. |
December 20, 2018 |
PRESSURE VALVE AND PRESSURE RELEASING ASSEMBLY FOR THE SAME
Abstract
A pressure releasing assembly has a hollow shell with a gap
formed through an end and a main notch formed therein and
communicating with the gap. A slide is mounted slidably in the
shell and an airproof element mounted between the inner wall of the
shell and the slide to keep the air from leaking through the space
between the slide and the inner wall of the shell. When the slide
is moved rapidly because of the excessively high air pressure, the
airproof element is moved along with the slide and then is received
in the main notch. Then a space is resulted between the wall of the
main notch and the airproof element to allow the gas to leak out
from the gap. Therefore, the air pressure is reduced rapidly to
keep the component from being damaged.
Inventors: |
Chen; Li-Wei; (Su'ao
Township, TW) ; Krebs; Cole; (Su'ao Township,
TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
BANZA STAMPING INDUSTRY CORP. |
Su'ao Township |
|
TW |
|
|
Assignee: |
BANZA STAMPING INDUSTRY
CORP.
Su'ao Township
TW
|
Family ID: |
64656680 |
Appl. No.: |
15/623569 |
Filed: |
June 15, 2017 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
G05D 16/106 20130101;
F16K 17/046 20130101; F16K 17/048 20130101 |
International
Class: |
F16K 17/04 20060101
F16K017/04 |
Claims
1. A pressure releasing assembly comprising: a hollow shell having
an outlet end; an inner wall; a gap formed through the outlet end;
and a main notch formed on the inner wall and communicating with
the gap; a slide mounted slidably in the shell near the outlet end;
an airproof element mounted between the inner wall of the shell and
the slide, attached to the slide and selectively received in the
main notch; and a resilient element mounted in the shell and
clamped between the slide and the outlet end of the shell.
2. The pressure releasing assembly as claimed in claim 1, wherein
the gap of the shell is longitudinally across the outlet end of the
shell; and the shell has a secondary notch formed on the inner wall
of the shell, being separate from the main notch and communicating
with the gap.
3. The pressure releasing assembly as claimed in claim 1, wherein
the slide has an annular recess; and the airproof element is
mounted in the annular recess.
4. The pressure releasing assembly as claimed in claim 2, wherein
the slide has an annular recess; and the airproof element is
mounted in the annular recess.
5. The pressure releasing assembly as claimed in claim 1, wherein
the airproof element is an O-ring.
6. The pressure releasing assembly as claimed in claim 2, wherein
the airproof element is an O-ring.
7. The pressure releasing assembly as claimed in claim 3, wherein
the airproof element is an O-ring.
8. The pressure releasing assembly as claimed in claim 4, wherein
the airproof element is an O-ring.
9. The pressure releasing assembly as claimed in claim 1, wherein
the slide has an axial recess to receive the resilient element.
10. The pressure releasing assembly as claimed in claim 1, wherein
the shell has an inner bump; and one end of the resilient element
is mounted around the inner bump.
11. A pressure valve comprising: a hollow shell having an inlet
end; an outlet end; an inner wall; a gap formed through the outlet
end; and a main notch formed on the inner wall and communicating
with the gap; a valve body mounted in the shell near the inlet end
and selectively stopping gas from flowing through the valve body; a
slide mounted slidably in the shell near the outlet end; an
airproof element mounted between the inner wall of the shell and
the slide, attached to the slide and selectively received in the
main notch; and a resilient element mounted in the shell and
clamped between the slide and the outlet end of the shell.
12. The pressure valve as claimed in claim 11, wherein the gap of
the shell is longitudinally across the outlet end of the shell; and
the shell has a secondary notch formed on the inner wall of the
shell, being separate from the main notch and communicating with
the gap.
13. The pressure valve as claimed in claim 11, wherein the slide
has an annular recess; and the airproof element is mounted in the
annular recess.
14. The pressure valve as claimed in claim 12, wherein the slide
has an annular recess; and the airproof element is mounted in the
annular recess.
15. The pressure valve as claimed in claim 11, wherein the airproof
element is an O-ring.
16. The pressure valve as claimed in claim 12, wherein the airproof
element is an O-ring.
17. The pressure valve as claimed in claim 13, wherein the airproof
element is an O-ring.
18. The pressure valve as claimed in claim 14, wherein the airproof
element is an O-ring.
19. The pressure valve as claimed in claim 11, wherein the slide
has an axial recess to receive the resilient element.
20. The pressure valve as claimed in claim 11, wherein the shell
has an inner bump; and one end of the resilient element is mounted
around the inner bump.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
[0001] The present invention relates to a pressure releasing
assembly, and more particularly to a pressure releasing assembly
for a pressure valve that immediately exhausts excessively high
pressure.
2. Description of the Prior Arts
[0002] Pressure valves are used to reduce the input pneumatic
pressure to a desired output pneumatic pressure and are used widely
in various devices. A piston is mounted movably between the inlet
and the outlet to selectively stop the gas flow from a pressure gas
source to a downstream device. However, when the conventional
pressure valve is suffering from excessively high air pressure, the
inner component of the conventional pressure valve is pushed by the
excessively high air pressure causing damage.
[0003] To overcome the shortcomings, the present invention provides
a pressure releasing assembly for a pressure valve to mitigate or
obviate the aforementioned problems.
SUMMARY OF THE INVENTION
[0004] The main objective of the present invention is to provide a
pressure releasing assembly for a pressure valve to rapidly reduce
the excessively high air pressure. The pressure releasing assembly
has a hollow shell with a gap formed through an end and a main
notch formed therein and communicating with the gap. A slide is
mounted slidably in the shell and an airproof element mounted
between the inner wall of the shell and the slide to keep the air
from leaking through the space between the slide and the inner wall
of the shell. When the slide is moved rapidly due to excessively
high air pressure, the airproof element is moved along with the
slide and then is received in the main notch. Then a space is
caused between the wall of the main notch and the airproof element
to allow the gas to leak out from the gap. Therefore, the air
pressure is reduced rapidly to keep the component from being
damaged.
[0005] Other objectives, advantages and novel features of the
invention will become more apparent from the following detailed
description when taken in conjunction with the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0006] FIG. 1 is a perspective view of a pressure valve in
accordance with the present invention;
[0007] FIG. 2 is an exploded perspective view of the pressure valve
in FIG. 1;
[0008] FIG. 3 is another exploded perspective view of the pressure
valve in FIG. 1;
[0009] FIG. 4 is an enlarged cross sectional view of a shell of the
pressure valve in FIG. 1; and
[0010] FIGS. 5A to 5C are enlarged operational views in partial
section of the pressure valve in FIG. 1
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0011] With reference to FIGS. 1 to 3, a pressure valve with a
pressure releasing assembly in accordance with the present
invention comprises a shell 10, a valve body 20, a slide 30, an
airproof element 40 and a resilient element 50.
[0012] With reference to FIGS. 1 and 4, the shell 10 is hollow and
has an inlet end 101, an outlet end 102, an inner wall, a gap 11
and a main notch 12. The gap 11 is formed through the outlet end
102 of the shell 10. The main notch 12 is formed on the inner wall
and communicates with the gap 11. In one embodiment, the gap 11 is
longitudinally across the outlet end 102 of the shell 10, and the
shell 10 has a secondary notch 13. The secondary notch 13 is formed
on the inner wall of the shell, is separate from the main notch 12
and communicates with the gap 11. The secondary notch 13 is shorter
than and is opposite to the main notch 12. In one embodiment, the
shell 10 comprises two halves.
[0013] With reference to FIGS. 1 and 2, the valve body 20 is
mounted in the shell 10 near the inlet end 101 and selectively
stops gas from flowing through the valve body 20.
[0014] With reference to FIGS. 2 and 3, the slide 30 is mounted
slidably in the shell 10 near the outlet end 102. In one
embodiment, the slide 30 has an annular recess 31.
[0015] The airproof element 40 is mounted between the inner wall of
the shell and the slide 30, is attached to the slide 30 and is
selectively received in the main notch 12. In one embodiment, the
airproof element 40 is an O-ring and is mounted in the annular
recess 31 of the slide 30.
[0016] The resilient element 50 is mounted in the shell 10 and is
clamped between the slide 30 and the outlet end 102 of the shell
10. In one embodiment, the slide 30 has an axial recess 32 to
receive the resilient element 50. In one embodiment, the shell 10
has an inner bump 14 and one end of the resilient element 50 is
mounted around the inner bump 14 to hold the resilient element 50
linearly. In one embodiment, the resilient element is a spring.
[0017] With reference to FIG. 5A, the airproof element 40 abuts
against the inner wall of the shell 10 to keep the gas from leaking
through.
[0018] With reference to FIG. 5B, the pressure valve as described
is subjected to an excessively high air pressure so that the slide
30 is pushed to move rapidly. The airproof element 40 is moved
along with the slide 30 until the airproof element 40 is received
in the main notch 12 of the shell 10. When the airproof element 40
is received in the main notch 12 of the shell 10, the airproof
element 40 no longer abuts against the inner wall of the shell 10
to make a space between the wall of the main notch 12 and the
airproof element 40. Then the gas leaks out from the gap 11 through
the main notch 12 of the shell 10 so that the air pressure is
rapidly decreased.
[0019] With reference to FIG. 5C, the pressure valve as described
is subjected to an even excessively higher air pressure so that the
slide 30 is pushed to move even more rapidly. The airproof element
40 is moved along with the slide 30 until the airproof element 40
is received both in the main notch 12 and in the secondary notch 13
of the shell 10. When the airproof element 40 is received in the
main notch 12 and in the secondary notch 13 of the shell 10, the
airproof element 40 no longer abuts against the inner wall of the
shell 10 to make two spaces between the airproof element 40 and the
walls of the main notch 12 and the secondary notch 13. Then the gas
leaks out from the gap 11 through the main notch 12 and the
secondary notch 13 of the shell 10. Since the gas leaks through
both of the main notch 12 and the secondary notch 13, the air
pressure decreases more rapidly.
[0020] When the air pressure in the pressure valve decreases to the
predetermined pressure, the resilient element 50 pushes the slide
30 back to the normal position.
[0021] With the gap 11, the main notch 12, the slide 30 and the
airproof element 40 to form a pressure releasing assembly, the
excessively high air pressure is easily relieved by leaking gas
through the main notch 12. Therefore, the pressure valve as
described does not harm by the excessively high air pressure.
[0022] Even though numerous characteristics and advantages of the
present invention have been set forth in the foregoing description,
together with details of the structure and features of the
invention, the disclosure is illustrative only. Changes may be made
in the details, especially in matters of shape, size, and
arrangement of parts within the principles of the invention to the
full extent indicated by the broad general meaning of the terms in
which the appended claims are expressed.
* * * * *